Abstract
The paper evaluated the possibility of potential reinforcing of poly(oxymethylene) (POM) by glass fiber and the influence of fiberglass addition on mechanical properties under dynamic load. Four types of composites with glass fiber and another four with carbon fiber were produced. The fiber content ranged from 5% to 40% by weight. In the experimental part, the basic mechanical and fatigue properties of POM-based composites were determined. The impact of water absorption was also investigated. The influence of fiber geometry on the mechanical behavior of fiber-reinforced composites of various diameters was determined. To refer to the effects of reinforcement and determine the features of the structure scanning electron microscopy images were taken. The results showed that the addition of up to 10 wt %. fiberglass increases the tensile properties and impact strength more than twice, the ability to absorb energy also increases in relation to neat poly(oxymethylene). Fiber geometry also has a significant impact on the mechanical properties. The study of the mechanical properties at dynamic loads over time suggests that composites filled with a smaller fiber diameter have better fatigue properties.
Highlights
Polymer composites are classified as a group of construction materials
Glass fiber and carbon fiber are widely used as reinforcement in a thermoplastic matrix because they provide a great balance between mechanical properties and economic features [1]
Glass fiber composites are characterized by a higher melt flow rate with increasing fiber content compared to carbon fiber composites
Summary
Polymer composites are classified as a group of construction materials. It has been found that the addition of fillers in the form of fibers and particles to the polymer matrix advances the mechanical characteristics of polymeric materials. The strength and stiffness of the polymeric materials can be effectively developed by means of reinforcing fibers. Glass fiber and carbon fiber are widely used as reinforcement in a thermoplastic matrix because they provide a great balance between mechanical properties and economic features [1]. Carbon fibers are produced mainly by polyacrylonitrile as a result of pyrolysis and their properties are primarily affected by the production parameters [2,3]. The main advantages of appliance carbon fibers to reinforce polymeric matrices are low density, good mechanical properties, thermal and electrical conductivity, in addition, these fibers can suppress vibrations and have low absorption of
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